Chemistry Homework Help

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7.62g of iron reacts with 8.67g of sulfur

Fe   +   S        FeS

1. Which reactant is the limiting reactant using the above information?

2.What is the theoretical yield of the product (in grams)?

3. What is the percentage yield if only 8g of FeS is produced?

May 29th, 2015

1.Iron is the limiting reactant

mole of iron=7.62/56

=0.136 moles

moles of sulphur= 8.67/32

=0.271 moles

mole ratio is 1:1

total mass=(8.67+7.62)


3. what is the percentage yield=8/16.29 x 100


May 29th, 2015

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